Question

How do you simplify `(4x^5)/(16x^3)`?

Answer 1

`(4x^5)/(16x^3) = (4x^3*x^2)/(4x^3*4) = x^2/4`

with exclusion `x != 0`

Explanation:

Use `x^(a+b) = x^a*x^b`

Note that if `x = 0` then `(4x^5)/(16x^3) = 0/0` has undefined value.

Hence the exclusion.